# Copyright (C) 2024 Web Server LLC

echo $ngx_n "collecting build environment information...$ngx_c"

$CC -include $NGX_AUTO_CONFIG_H -E -dM - < /dev/null >/dev/null 2>&1
if [ $? -ne 0 ]; then
cat <<EOF >> $NGX_MODULES_C
void
ngx_show_build_info()
{
    ngx_write_stderr("environment information was disabled during build\n");
}
EOF

    echo "skipped, no support found in selected CC"

else

cat <<EOF >> $NGX_MODULES_C
void
ngx_show_build_info()
{
EOF

$CC -include $NGX_AUTO_CONFIG_H -E -dM - < /dev/null                          \
    | grep NGX                                                                \
    | sed 's/#define //g;s/"/\\"/g;s/NGX_HAVE_//g;s/NGX_//g'                  \
    | sort                                                                    \
    | awk '
    {
        printf("    ngx_write_stderr(\"%s\" \": \"\"", $1);
        for (i = 2; i <= NF; i++) {
            printf("%s", $i);
            if (i != NF && NF > 2) {
                printf(" ");
            }
        }
        printf("\"\"\\n\");\n");
    }' >> $NGX_MODULES_C

echo "}
" >> $NGX_MODULES_C

    echo " ok"
fi